Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	5 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2020	Jun. 30, 2019
Schedule Of Income Taxes [Line Items]
Income tax benefit (expense)	$ 0.4	$ 0.0		$ 1.5	$ 0.0
Pre-tax loss	(4.5)	$ 0.4	$ (6.8)	(22.6)	$ (2.2)
Effective income tax rate			22.70%
Net deferred tax liabilities related to property and equipment assets and other temporary items	$ 17.4		$ 17.4	$ 17.4

Schedule of income taxes.

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Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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